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Health-Related Quality of Life in Weight Loss Interventions: Results from the OPTIWIN Trial
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Health-Related Quality of Life in Weight Loss Interventions: Results from the OPTIWIN Trial
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Health-Related Quality of Life in Weight Loss Interventions: Results from the OPTIWIN Trial
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Journal Article
Health-Related Quality of Life in Weight Loss Interventions: Results from the OPTIWIN Trial
2021
Overview
Obesity is highly prevalent and associated with several adverse outcomes including health-related quality-of-life (HRQoL), work productivity, and activity impairment. The objective of this study is to examine group differences in HRQoL and labor-related health outcomes among participants in the OPTIWIN program, which compared the effectiveness of two intensive behavioral weight loss interventions. Participants (n = 273) were randomized to OPTIFAST®(OP) or food-based (FB) dietary interventions for 52 weeks. HRQoL and labor-related health outcomes were measured at baseline, week 26, and week 52, using two questionnaires. At baseline, there were no differences between groups on the Impact of Weight on Quality-of-Life Questionnaire (IWQOL-Lite). At week 26, the OP group had statistically significant differences towards better HRQoL for Physical Function, Self-Esteem, and the total score compared with the FB group. At week 52, the OP group showed better HRQoL in the total score (p = 0.0012) and in all but one domain. Moreover, the adjusted change-from-baseline normalized total score at week 52 was −5.9 points (p = 0.0001). Finally, the mean IWQOL-Lite normalized score showed that HRQoL improves by 0.4442 units (p < 0.0001) per kg lost, and that greater weight reduction was positively associated with better HRQoL. No statistically significant group differences were found with the Work Productivity and Activity Impairment (General Health) (WPAI-GH) Questionnaire. HRQoL improves with highly intensive, well-structured weight loss interventions. Greater weight loss lead to larger improvements. The lack of negative effect on productivity and activity suggests that these interventions may be compatible with an active work lifestyle.
